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More Power. When you add nitrous, superchargers, or turbos to your Pony you need the correct spark plug to maximize the horsepower benefits available from these modifications. That is where Autolite "HT0" Spark Plugs come into play, these plugs are specifically designed for applications that require one step colder heat range.

Superior Materials. Autolite Spark Plugs have a thin profile design with a copper core for its superior conductivity and a durable platinum tip to assure a strong spark and a long life to keep your performance Pony running at it's peak power.

Application. This set of eight (8) Autolite HT0 Spark Plugs are specifically designed as an upgrade for nitrous or force inducted 2005 to 2008 GT Mustangs. These plugs are factory gaped at 0.045 inch.

Questions & Answers (5)

5 Top Rated Questions

Will these plugs work well with my 06 gt stock everything?

Hello! This set of eight (8) Autolite HT0 Spark Plugs are specifically designed as an upgrade for nitrous or force inducted 2005 to 2008 GT Mustangs. These plugs are factory gaped at 0.045 inch. They would not be a good option or necessarily even work on a stock GT.

Use without NOS or an S/C? I have a few upgrades but I'm not running NOS or a S/C and I would like to put some better plugs in other then the 2 piece OEM plugs will these work fine in my stang or give me more headache then performance? Thanks for the help.

The Autolite HT0 Spark Plug (05-08 GT) would do more harm than good if you didn't have the proper power (i.e. a boosted application of some sort) in order to support it.

Replaced factory plugs with these, had minor detonation even w/93 octane ... all stock. Replaced plugs, runs great, cut detonation down to almost nothing. Perfect!
PB Blast the old plugs for a few hours, the get a good fitting 9/16 socket on cold motor, by hand, go slow ... no broken plugs.

Went to local store for same plugs, about 3-4$ more per plug as well as being out of state. Got these guys great price and a day early. Easy install as well. So far they are performing great with the turbo.

These plugs were affordable. working well in my 06 mustang GT that I added a Roushcharger. its been a year and 10k miles with no misfires nor issues. You do not gain any power from a sparkplug change and never change your plugs before 100k miles. factory plugs are platinum.

These plugs worked well for me on my 06 mustang. I've read they are much better on a forced induction application so I will be trying a hotter plug next time around. Still worked great over my 100k mile stock plugs.

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